diff options
Diffstat (limited to 'arch/arm/mach-shmobile/platsmp.c')
| -rw-r--r-- | arch/arm/mach-shmobile/platsmp.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c index 1f958d7b0bac..7437c01513f6 100644 --- a/arch/arm/mach-shmobile/platsmp.c +++ b/arch/arm/mach-shmobile/platsmp.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * SMP support for R-Mobile / SH-Mobile * @@ -5,24 +6,30 @@ * Copyright (C) 2011 Paul Mundt * * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/init.h> -#include <linux/smp.h> +#include <asm/cacheflush.h> +#include <asm/smp_plat.h> +#include "common.h" + +extern unsigned long shmobile_smp_fn[]; +extern unsigned long shmobile_smp_arg[]; +extern unsigned long shmobile_smp_mpidr[]; -void __init shmobile_smp_init_cpus(unsigned int ncores) +void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg) { - unsigned int i; + shmobile_smp_fn[cpu] = 0; + flush_cache_all(); - if (ncores > nr_cpu_ids) { - pr_warn("SMP: %u cores greater than maximum (%u), clipping\n", - ncores, nr_cpu_ids); - ncores = nr_cpu_ids; - } + shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu); + shmobile_smp_fn[cpu] = fn; + shmobile_smp_arg[cpu] = arg; + flush_cache_all(); +} - for (i = 0; i < ncores; i++) - set_cpu_possible(i, true); +#ifdef CONFIG_HOTPLUG_CPU +bool shmobile_smp_cpu_can_disable(unsigned int cpu) +{ + return true; /* Hotplug of any CPU is supported */ } +#endif |